What is a physiological effect of inhaling lavender oil?

Inhaling lavender oil is well-known for its calming properties, which contribute to inducing relaxation. The physiological effect of inhaling lavender oil includes a reduction in heart rate, which is indicative of relaxation and a decrease in stress levels. This effect is largely attributed to compounds found in lavender, such as linalool and linalyl acetate, that have been shown to engage the parasympathetic nervous system. This system is responsible for the body's rest-and-digest response, leading to a state of calmness and tranquility.

Additionally, the calming effects of lavender oil can help decrease anxiety and promote better sleep, further enhancing relaxation. Studies have shown that aromatherapy with lavender can significantly lower heart rate and cortisol levels, which are markers of stress in the body. This makes lavender oil a popular choice in both therapeutic and wellness settings for those looking to manage stress and anxiety.

The other options provided, while having their own merits in different contexts, do not accurately reflect the established physiological effects associated with inhaling lavender oil.